Ventilating system.



(No Model.)

f6 ZK/ed.

Patented Sept. 5, |899.

A. MILLER.

VENTILATING SYSTEM.

(Application filed Mar. 23, 1899.)

i NITED STATES f PATENT OFFICE'.

AUGUST MILLER, OF BURLINGTON, IOWA.

VENTILATING SYSTEM.

siE'cIFIcArIoN 'forming part of Letters Patent No. 632,582, dated september 5, 1899.

Application lefi March Z3, 1899. Serial No. 710,236. (No model.)

To @ZZ whom it may concern:

Beit known that I, AUGUsT MILLER, a citizen of the United States, residing at Burlington, in the county ofDes Moines and State of Iowa, have invented certain new and useful Improvements in Ventilating Systems; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable other skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

This invention relates to certain new and useful improvements in Ventilating systems in connection with hot-air iiues, and in carrying out the present invention it is my purpose to generally improve upon my hot-air iiues or pipes upon which I was granted Letters Patent No. 490,597, of January 24, 1893.

More speciically my invention resides in the provision, in connection with a series of superimposed hot-air pipe-sections, of VentilatingboXes, which are to -be placed near the floors of the various rooms and have communication with the space about the hot-air pipe and between same and the surrounding walls of the sections making up the pipe, which may lead through the various stories of a house from the cellar to the chimney.

Another part of the invention resides in the provision of means whereby the exit end of the space surrounding the hot-air iiue may be closed and communication had between the space and the interior of the hot-air passageway by the removal of a suitable slide and when in a closed relation is securely held in such locked relation.

To these ends and to such others as the invention may pertain the same consists, further, in the novel construction, arrangement, and combination of parts, as will be hereinafter more fully described, and then specifically defined in the appended claim.

My invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this application, and in which- Figure lis a central vertical section through my improved flue and ventilator. Fig. 2 is a det-ail view showing the slide and means of locking same in a closed relation.

Reference now being had to the details of the drawings by letter, A designates the outer wall of the Ventilating-flue, having a central hot-air passage-wayB. The lower end of the iiue is outwardly flared and has, an opening C, where connection may be made with a hotair pipe coming from a furnace. (Not shown.) At a location preferably near the floor of the room, near the lower part of the flue, is an open Ventilating-box D, communicating with the space about the central hot-air passageway. At any suitable location above said Ventilating-box may be connected a registerbox B', which communicates with the central hot-air passage-way, and at the various stories of a building may be arrangedregisters, if desired. In the drawings I have shown the upper end of the hot-air passage way as merging into a register-box which extends laterally and opens into a room of the house. The top of the hot-air passage-way is apertured at N, and the top of the Ventilating-liuc is also apertured, over which openin g may be placed a pipe or chimney E', which may extend up through the roof. If desired to close this outlet at any time, a cap E is provided, which fits over the bottom of the pipe or chimney, and in order to allow communication to be had between the space about the central hot-air passage-way and the space within said iiue a slide G is provided, which is angled, as at G', and has its inner end or edge bent upon itself, forming an elongated hook, as shown,which hooked edge is designed to engage with the edge K of the wall of the hot-air passage-way, while the outer end of said slide is held to the top of the flue by means of flexible straps M, which are fixed to the wall of the iiue and may be bent, so that their free ends will bear against the under face of said slide to hold the latter in a closed relation over the aperture N in the inclined wall of the central hot-air passage-way.

From the foregoing it will be seen that all dust will be prevented from being carried into the room, as the ventilator-box has direct connection with the same room into which the register opens. Vhen it is desired to allow the air in the Ventilating-fine to pass into the central hot-air passage-way, the slide is removed, and by a person reaching through the aperture after the slide has been removed IOO the cap E may be placed over the lower end of the ohimn ey, as will be readily understood.

Having thus described my invention, what I claim to be new, and desire to secure by Letters Patent, is-

.In combination with the Ventilating-flue, with open Ventilator-box D therein, the eentral hot-air passage-way, having a registerbox B and an apertured top, the upper end of said passage-Wayhaving a right-angled exit, the capped Chimney, the slide G having its lower end bent upon itself to form an S- shaped curve, and adapted to engage over the upper edge of the inclined top wall of the central hot-air passage-Waypand Close the 15' the under surface of the top of the iiue, as 2Q shown and described.

In testimony whereof I aiiix my signature in presence of two Witnessesi AUGUST MILLER,

Witnesses:

C, E. DEMLING, J. A. STRODEL. 

